Heel portion of a shoe



FIG. 1 is a rear lateral perspective view of a heel portion of a shoeshowing my new design;

FIG. 2 is a lateral side view thereof;

FIG. 3 is a medial side view thereof; and,

FIG. 4 is a rear view thereof.

The broken line showing of the remainder of the shoe is for illustrativepurposes only and forms no part of the claimed design.

The ornamental design for a heel portion of a shoe, as shown anddescribed.